Gatekeeper 3.7.0 Update

Package Merge Request

Package Changes

Update OPA Gatekeeper to 3.7.0

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/core/policy/-/merge_requests/122

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1035